MODULE Commands;
	IMPORT Objects, Modules, Streams, KernelLog, Trace, Machine;
CONST 
	Wait* = 0; 
	InheritContext* = 1; 
	Silent* = 2; 
	Ok* = 0; 
	CommandNotFound* = 3901; 
	CommandError* = 3902; 
	CommandParseError* = 3903; 
	CommandTrapped* = 3904; 
	Delimiter* = \"."\; 
	Started = 0; 
	Loaded = 1; 
	Finished = 2; 
TYPE 
	Context* = OBJECT 
	VAR 
		in-, arg-: Streams.Reader; 
		out-, error-: Streams.Writer; 
		caller-: OBJECT; 
		result*: WORD; 

		PROCEDURE ^  & Init*(in, arg: Streams.Reader; out, error: Streams.Writer; caller: OBJECT); 
	END Context; 

	ReaderMonitor* = OBJECT (Streams.Reader)
	VAR 
		in: Streams.Reader; 
		tracer: Streams.Writer; 
		pos0: Streams.Position; 
		tracedPos: LONGINT; 

		PROCEDURE ^  & Init(in: Streams.Reader; tracer: Streams.Writer); 
		PROCEDURE ^ Receiver(VAR buf: ARRAY OF CHAR; ofs, size, min: LONGINT; VAR len, res: LONGINT); 
		PROCEDURE ^ CanSetPos*(): BOOLEAN; 
		PROCEDURE ^ SetPos*(pos: Streams.Position); 
		PROCEDURE ^ Pos*(): Streams.Position; 
	END ReaderMonitor; 

	CommandProc = PROCEDURE ; 

	CommandContextProc = PROCEDURE (context: Context); 

	Runner = OBJECT {EXCLUSIVE} 
	VAR 
		moduleName, commandName: Modules.Name; 
		context: Context; 
		tracer: Streams.Writer; 
		r: ReaderMonitor; 
		proc: CommandProc; 
		commandProc: CommandContextProc; 
		msg: ARRAY 128 OF CHAR; 
		res: WORD; 
		module: Modules.Module; 
		state: WORD; 
		exception: BOOLEAN; 

		PROCEDURE ^  & Init*(CONST moduleName, commandName: Modules.Name; context: Context); 
		PROCEDURE ^ Join(this: WORD; VAR res: WORD; VAR msg: ARRAY OF CHAR); 
	BEGIN{ACTIVE, SAFE} 
	END Runner; 
VAR 
	emptyString: ARRAY 1 OF CHAR; 
	silentWriter: Streams.Writer; 
	trace: BOOLEAN; 
	defaultContext: Context; 

	PROCEDURE ^ GetEmptyReader(): Streams.Reader; 
	PROCEDURE ^ SendNothing(CONST buf: ARRAY OF CHAR; ofs, len: LONGINT; propagate: BOOLEAN; VAR res: WORD); 
	PROCEDURE ^ Split*(CONST cmdstr: ARRAY OF CHAR; VAR moduleName, procedureName: Modules.Name; VAR res: WORD; VAR msg: ARRAY OF CHAR); 
	PROCEDURE ^ GetContext*(): Context; 
	PROCEDURE ^ Activate*(CONST cmd: ARRAY OF CHAR; context: Context; flags: SET; VAR res: WORD; VAR msg: ARRAY OF CHAR); 
	PROCEDURE ^ Call*(cmds: ARRAY OF CHAR; flags: SET; VAR res: WORD; VAR msg: ARRAY OF CHAR); 
	PROCEDURE ^ Init; 
BEGIN
END Commands.